| 空间多支管接头的局部柔性分析 |
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| 引用本文： | 陈铁云,张惠元.空间多支管接头的局部柔性分析[J].上海交通大学学报,1995,29(2):1-7. |
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| 作者姓名： | 陈铁云 张惠元 |
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| 基金项目： | 国家教委博士点基金，国家自然科学基金 |
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| 摘 要： | 本文用半解析法的计算机程序ＳＡＭＴＪ计算了多支管局部柔度阵的各元素，讨论了不受载支管的刚度效应和支管间的交互柔性，认为忽略这些效应将导致求得的支管接局部柔度为上界和下界，最后指出，在结构分析中用单支管的局部柔度替代多支管局部柔度将导致偏于危险的计算结果。
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| 关 键 词： | 局部柔性 异面多支管接头 海洋平台 |
Local Flexibility of Multibrace Tubular Joint |
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| Chen Tieyun, Zhang Huiyuan.Local Flexibility of Multibrace Tubular Joint[J].Journal of Shanghai Jiaotong University,1995,29(2):1-7. |
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| Authors: | Chen Tieyun Zhang Huiyuan |
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| Institution: | Chen Tieyun; Zhang Huiyuan |
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| Abstract: | The definition of local flexibility matrix of multibrace tubular joint (uniplanar and multiplanar joint) is defined. The formulation for computing the elements of local flexibility factor matrix of the multibrace tubular joint by the semi-analytic method is presented in this paper. The stiffening effect of unloaded braces and the cross-flexibility between the braces are discussed. By using the local flexibility of unibrace joint instead of that of multibrace joint in the conventional structural analysis will lead to an unsafe result. |
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| Keywords: | local flexibility unibrace and multibrace tubular joints stiffening effect crossflexibility |
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